Device to prevent yarn from kinking



V P. I. HARVEY: "Device to Prevent Yarn from Kinking. No. 240.514.

Patente dApril 26,188I."

Fig.1.

nvenor: 4% 1%5 UNITED STATES PATENT OFFICE.

PETER I. HARVEY, OF AMSTERDAM, ASSIGNOR OF ON E-HALF TO ALBERT TOMPKINS AND IRA TOMPKINS, OF TROY, NEW YORK.

DEVICE TO PREVENT YARN FROM KINKI NG.

SPECIFICATION forming part of Letters Patent No. 240,514, dated April 26, 1881.

Application filed March 18, 1878.

To all whom it may concern Be it known that I, PETER I. HARVEY, of Amsterdam, county of Montgomery, and State of New York, have invented certain new and useful Improvements in Devices to Prevent Yarn from Kinkin g and I do hereby declare the following to be a full, clear, and correct description of the same, reference being had to the annexed drawings, making a part of this specification.

This invention relates to an attachment to knitting-machines where the yarn or thread is supplied to them from bobbins; and the object of the invention is to prevent the yarn from kinking when leaving the bobbin and under the influence of the uncoil of the bobbin-wind and the extra twist communicated to it on the cop by the jack. The advantages attained by this result are that an even tension is produced upon the yarn passing to the needles, the friction caused by the passage of the yarn when moving over the bobbin-barrel is avoided, and the loss of stitches with the production of holes in the fabric prevented.

My invention consists in means for preventing yarn from kinking as supplied from a bobbin to a knitting-machine, which consists in a hollow revolving cylinder having suitable bearings, downwardly and upwardly projecting arms provided with guide-rings, in combination with a driving means, as will be hereinafter more fully set forth.

In the accompanying drawings, illustrating my invention, Figure l is a view representing the device as at the termination of a connected series, and showing, also, the manner of arranging the pulleys in the series by which actuating power is received and communicated. Fig. 2 exhibits a vertical section of the device, showing the downwardly-extending arm or leg, the driving-pulleys, cylinder, bearing, upwardly -ex-tended arm, and side'arm support. Fig. 3 shows a view of the device in perspective, and the course and direction of the yarn when passed through it, the latter being represented by a Hat strip to better denote the twist and the manner in which the device when revolving affects it. This illustration also shows the rings for the passage of the yarn during the revolution of the device.

The various parts of the device are, by letters of reference, designated as follows:

A denotes the fixed sustaining-arm which holds the device in position, having formed upon it at its end the sleeve M, encircling the cylinder 0 to form a bearing for the revolution of the latter, which is held in place by the ring N.

1? denotes the pulley located on the cylinder to actuate it; N, the downwardly-extending arm or leg, and'A the upwardly-projecting arm attached to the cylinder and revolving with it.

L and L designate the guide-rings formed on the downwardly-extending arm or leg for the passage of the yarn, and L and L the rings upon the upwardly-projected arm for the same purposes.

. The yarn passing through the device is in-- dicated by the letters Y Y.

The letter E designates the opening through the revolving cylinder for the passage of the yarn.

B B B designate the belts which connect and actuate a series of devices like the one shown at Fig. 3, by means of the pulleys P Pl/l P4.

The operation of the device is as follows: The yarn when leaving the bobbin and under the influence of the extra twist put in it by the jackis inclined, on being unwound, to kink and loop from having been under the influence of an extra twist while in a wound condition. Not only this, but when passing along over the barrel of the bobbin this contact and friction tends to make it loop up and kink, and also to produce a jerking twitching motion, with an irregular tension of the yarn. When yarn under this condition is passed through the device named in the manner shown, with thedevice revolving, the off-throw producedby the arm or leg not only shakes out the kinks and loop if formed, but serves to prevent their formation by flirting the yarn away from the bobbin-barrel when being unwound. By preventing the formation of loops or kinks the loss of stitches, the breaking of needles, and

consequent appearance of holes in the fabric upwardly projecting arms A N, provided are avoided. with guide-rings, with the bearing. 10

Having thus described my invention, what Signed at Troy, this 25th day of February,

I claim, and desire to secure by Letters Pat- 1878.

5 ent, is PETER I. HARVEY.

The combination, substantially as described, Witnesses of the hollow revolving cylinder, having the A. B. PEGK,

pulleys P thereon, and the downwardly and GEORGE KooNs. 

